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Present-day aeolian activity in Herschel Crater, Mars

Authors
  • Marco, Cardinale
  • Simone, Silvestro
  • David A, Vaz
  • Tim Michaels
  • Mary C, Bourke
  • Goro, Komatsu
  • Lucia, Marinangeli
Type
Published Article
Journal
Icarus
Publisher
Elsevier
Publication Date
Feb 29, 2016
Volume
265
Pages
139–148
Source
SETI Institute
License
Unknown

Abstract

We estimate an average dune migration of 0.8 m and a minimum ripple migration of 1.1 m in a time span of 3.7 Earth-years. These dunes and ripples are mainly shaped by prevailing winds coming from the north, however we also report the presence of secondary winds which elongate the barchans horns. Such a complex wind scenario is likely caused by the influence of winds blowing off the western crater rim as suggested by the Mars Regional Atmospheric Modeling System (MRAMS), an atmospheric mesoscale model. A multi-directional wind regime at ...

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